427672769 has 8 divisors (see below), whose sum is σ = 442055040. Its totient is φ = 413528400.

The previous prime is 427672759. The next prime is 427672771. The reversal of 427672769 is 967276724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 427672769 - 2²⁰ = 426624193 is a prime.

It is a super-2 number, since 2×427672769² = 365807994688254722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427672759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55817 + ... + 63014.

It is an arithmetic number, because the mean of its divisors is an integer number (55256880).

Almost surely, 2^427672769 is an apocalyptic number.

It is an amenable number.

427672769 is a deficient number, since it is larger than the sum of its proper divisors (14382271).

427672769 is a wasteful number, since it uses less digits than its factorization.

427672769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118951.

The product of its digits is 1778112, while the sum is 50.

The square root of 427672769 is about 20680.2506996409. The cubic root of 427672769 is about 753.4200951882.

The spelling of 427672769 in words is "four hundred twenty-seven million, six hundred seventy-two thousand, seven hundred sixty-nine".